xref: /freebsd/bin/sh/output.h (revision 6be3386466ab79a84b48429ae66244f21526d3df)
1 /*-
2  * SPDX-License-Identifier: BSD-3-Clause
3  *
4  * Copyright (c) 1991, 1993
5  *	The Regents of the University of California.  All rights reserved.
6  *
7  * This code is derived from software contributed to Berkeley by
8  * Kenneth Almquist.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  * 3. Neither the name of the University nor the names of its contributors
19  *    may be used to endorse or promote products derived from this software
20  *    without specific prior written permission.
21  *
22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32  * SUCH DAMAGE.
33  *
34  *	@(#)output.h	8.2 (Berkeley) 5/4/95
35  * $FreeBSD$
36  */
37 
38 #ifndef OUTPUT_INCL
39 
40 #include <stdarg.h>
41 #include <stddef.h>
42 #include <stdio.h>
43 
44 struct output {
45 	char *nextc;
46 	char *bufend;
47 	char *buf;
48 	int bufsize;
49 	short fd;
50 	short flags;
51 };
52 
53 extern struct output output; /* to fd 1 */
54 extern struct output errout; /* to fd 2 */
55 extern struct output memout;
56 extern struct output *out1; /* &memout if backquote, otherwise &output */
57 extern struct output *out2; /* &memout if backquote with 2>&1, otherwise
58 			       &errout */
59 
60 void outcslow(int, struct output *);
61 void out1str(const char *);
62 void out1qstr(const char *);
63 void out2str(const char *);
64 void out2qstr(const char *);
65 void outstr(const char *, struct output *);
66 void outqstr(const char *, struct output *);
67 void outbin(const void *, size_t, struct output *);
68 void emptyoutbuf(struct output *);
69 void flushall(void);
70 void flushout(struct output *);
71 void freestdout(void);
72 int outiserror(struct output *);
73 void outclearerror(struct output *);
74 void outfmt(struct output *, const char *, ...) __printflike(2, 3);
75 void out1fmt(const char *, ...) __printflike(1, 2);
76 void out2fmt_flush(const char *, ...) __printflike(1, 2);
77 void fmtstr(char *, int, const char *, ...) __printflike(3, 4);
78 void doformat(struct output *, const char *, va_list) __printflike(2, 0);
79 FILE *out1fp(void);
80 int xwrite(int, const char *, int);
81 
82 #define outc(c, file)	((file)->nextc == (file)->bufend ? (emptyoutbuf(file), *(file)->nextc++ = (c)) : (*(file)->nextc++ = (c)))
83 #define out1c(c)	outc(c, out1);
84 #define out2c(c)	outcslow(c, out2);
85 
86 #define OUTPUT_INCL
87 #endif
88